Fix loading of solidworks files, which start with "solid" but are binary files...
Fix loading of solidworks files, which start with "solid" but are binary files...

derekhe/CuraEngine,pratikshashroff/pcura,jacobdai/CuraEngine-1,be3d/CuraEngine,ROBO3D/CuraEngine,robotustra/curax,mspark93/CuraEngine,Skeen/CuraJS-Engine,alex1818/CuraEngine,totalretribution/CuraEngine,electrocbd/CuraEngine,alephobjects/CuraEngine,Jwis921/PersonalCuraEngine,electrocbd/CuraEngine,be3d/CuraEngine,pratikshashroff/pcura,Jwis921/PersonalCuraEngine,robotustra/curax,foosel/CuraEngine,Ultimaker/CuraEngine,phonyphonecall/CuraEngine,mspark93/CuraEngine,patrick3coffee/CuraTinyG,ROBO3D/CuraEngine,pratikshashroff/pcura,phonyphonecall/CuraEngine,markwal/CuraEngine,Skeen/CuraJS-Engine,markwal/CuraEngine,foosel/CuraEngine,uus169/CuraEngine,alex1818/CuraEngine,mspark93/CuraEngine,jacobdai/CuraEngine-1,totalretribution/CuraEngine,electrocbd/CuraEngine,daid/CuraCutEngine,patrick3coffee/CuraTinyG,uus169/CuraEngine,derekhe/CuraEngine,fxtentacle/CuraEngine,totalretribution/CuraEngine,alex1818/CuraEngine,markwal/CuraEngine,phonyphonecall/CuraEngine,ROBO3D/CuraEngine,be3d/CuraEngine,Skeen/CuraJS-Engine,patrick3coffee/CuraTinyG,uus169/CuraEngine,alephobjects/CuraEngine,fxtentacle/CuraEngine,robotustra/curax,Jwis921/PersonalCuraEngine,daid/CuraCutEngine,derekhe/CuraEngine,foosel/CuraEngine,fxtentacle/CuraEngine,Ultimaker/CuraEngine,jacobdai/CuraEngine-1,alephobjects/CuraEngine